Lemon Fresh???

ok guys, i have a question. I need to get some "Lemon Fresh" for a recipe, it doesn't say how much. So my question is "what is it? where do I get it? and how much of it do you suggest I put in a bowl of punch?  it is a Barcardi Daquiri punch.

It appears to be the New Zealand version of our RealLemon Lemon Juice.
Here's the web site: http://www.lemonfresh.co.nz/Site_new/home_files/****tailbook .pdf

Check out their punch recipes. I would use it measure for measure as you would lemon juice.

your awesome thanks,